Machine for manufacturing nails from unfinished horseshoe nails



A 0. H. LUND. V MACHINE FOR MANUFACTURING NAILS FROM UNFINISHED HORSESHOE NAILS. APPLICATION FILED APR. 14. 19!].

1,303,694. Patented May 13, 1919.

2 SHEETS-SHEET I.

Fi g1.

0. H. LUND.

MACHINE FOR MANUFACTURING NAILS FROM-UNFINISHED HORSESIIOE NAILS. APPLICATION FILED APR. I4. I917.

1,303,694. Patented May13,1919.

2 SHEETS-SHEET 2.

1 .4 I F' L I UNITED STATES PATENT OFFICE.

OLE HANSENPLUND, or cnRIsTIAnrA, nonwnnessienon r0 cnmsrremii TRAAIDS'IIFTFABRIK, or CHRISTIAN'IA, NORWAY.

MACHINE-FOR MANUFACTURING NAILS FROM oivrrivisnnn HoRsEs'Hon-NAILs.

Specification of Letters Patent. Patented May 13 1919,

Application filed April 14:, 1917. Serial No. 162,148.

To all whom it may concern:

Be it known that I, OLE HANSEN LUND,'3." subject of the King of Norway, residing at Christiania, Norway, have invented certain new and useful Improvements in Machines for Manufacturing Nails from" Unfinished Horseshoe-Nails; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as willie'nable other skilled in the art to which it appertains to make and use the same, reference being had to 'the accompanying .drawings, and to letters or figures of reference marked thereon, which form a part of this specificar tion. i

My invention relates torthe manufacture of nails and more especially that kind-ofnailswhich is used for instance by the boat builders and in other tradesand whichhave a flat and very broad head. The usual way; of making these nails'is a process in which. machine-work is combined with considerable manual work and is therefore expensive.

My invention consists in means and combination of parts whereby a redhot blank of a horseshoe nail from a horseshoe nail ma chine is caused to be, in a fully automatical way and in direct continuation of the forging process, treated by tools which convert the same into a nail of the type mentioned.

In the drawing is shown one manner of illustrated being adapted to be placed underneath and directly combined with the main parts of a usual Dodge horseshoe nail inachine. a

Figure 1 is an end view, showing some parts in section. Fig. 2 is a plan view of the main arts underneath the line 2--2 in Fig- 1. Flg. 3 is a sectional side view. (Line 3-3 in Fig.1). Figs. 4i and 5 are detail views. a H

1 designates the bottom plate in a horse shoe nail machine. 2 is a curved chute, the upper substantially vertical end of which has its opening right below the point where in the horseshoe nail machine the blank, severed from the end of the iron rod falls down from the cutter. 3 Thechute ends with an abutment 13 "in frontof which is an opening normally covered by a substantially h0rizontal sliding plate 3, on which-the nail (a) comes to rest in the position shown. The said sliding plate enters the chute through a slit in its side wall and is carried by an arm 6', swinging on a pivot 5 (see Fig. l), a

spring 7 keeping the arm in its normal p0s1- tion. Abellcrank 8, 9 controlled by the cam 11 on a shaft 10, .journaled in upright frame members 10, moves the plate out frontthe chute at intervals corresponding with the production of nail blanks by the horseshoenailmachine. i

- Below the'plate 3 the chute has a substantially vertical 1 extension with a convex curved back wall 1 1. The effectof the soformed wall is to retain the head of the nail,

in themoment it drops down from late 3, somuch that a swinging downwar point of the nail, is secured.

The nail blank when it leaves the chute is caught by a holder 17, formed between the outer ends of two arms 15, 16 whichflare pivotally mounted in small frame 18 and are rept in. their closed position shown, bythe spring19. The frame 18 is mounted so as to swing vertically on the pins 21, 22, the spring 24: betWeenthe bracket 23 and a small standard on the swinging frame keeping the. frame pushed outwardly. This resilient mounting ofthe frame 18 has the purpose to allow the holder arms to swing upwardly in certain cases to prevent the smashing of some part of the machinery if a crooked blank or other object should be caught by the working parts underneaththe holder, hereafter described. a f 25 is a rod, the foremost end of which rests in the frame 18 and enters the wedge shaped space between the arms 15 and 16, and the rear end of which rests in a perforation in the standard 26. It is b a link 27 connected with a reciprocating lever 28 and by its movement causes the arms 15 and 16 to be pushed sidewise from each other. The said lever 28extends from a shaft 29, and has an arm 31 which by means of a spring 32 is kept in contact witha cam 30 on the slraft 10.

Below the holder 17, swinging in a horizontal plane about the center 37 is acarrier, composed of the arm 35 and the arm 36, which latterby the spring 38 is kept in its normal position relatively to the arm 35, as shown in Fig. 2. The free end. of the arm 35 and the free end of lever 28 are connected together bya link 45, whereby the carrier is moved from its position in Fig. 2 to its position in Fig. 5. WVhen so moved a boss 47 on the arm '36 hits a stop on the frame "so that by the further movement of the link 45 the arms will be drawn apart. In this position the arms remain underneath the holder 17 in the moment when the blank falls down through the chute and is caughtby the holder. The free ends of said arms are provided with dies 43 and 44 and move on two parallel ribs 40 and 41 between which there is an aperture 42 through the frame, giving ample room for the nail blank.

The mechanisms just described are socombined and timed that when the rod 25 by the movement of the lever 28 pushes out from each other the arms 15 and 16 of the holder'17, the link 45 will simultaneously therewith close the carrier arms 35, 36, so

that the blank slipping through the widened mouth of the holder will be stopped and caught by the closing mouth of the carrier dies, and the carrier thereupon swinging to the left the blank will be brought. in theposition shown in Fig. 1.

The blankis .now in position for having its head pressed to the desired flat shape, this being doneby means of thehammer or die 49 on the lower end of a stem 51, working in a corresponding bore in the bracket 50. An arm 53 whose endv is acted upon by a roller. 54 on the camwheel 30 and which swings on the pivot 52 imparts a blow.

to the stem 51 once for each revolution of the axle 10. The spring 56 holds the arm 53 and a spring 57 the stem '51 normally in a lifted position. 1

60 is an adjustable and resilient stop for the carrier 35, 36, a spring 59 keeping it in its innermost position. This resilient stop is a security against breaking of the parts in case two blanks should at the same time happen to be caught by the carrier. The finished nail leaves the carrier when the latter is being opened as shown in Fig. 5, there beingprovided if necessary an ejector to secure the loosing of the nail from the dies, asusual in machinery of this kind.

What I claim is:

' 1. In a machine of the character described, a conveyer having a substantially vertical upper portion, a substantially horizontal lower portion and an intermediate concave portion, a laterally movable support in the horizontal portion of said conveyer, a convex extension below and extending under said support to engage and turn the blanks during their passage through the conveyer, and a holder below said extension adapted to catch the nails.

2. In a machine of the character described, a conveyer for nail blanks, a holder arranged to receive the blanks from the conveyer, a header, an oscillatory carrier arranged to swinglbetween the holder and header, means to open the holder to release a blank therefrom, and means to simultaneously close the carrier to catch the released blank.

3. In a machine of the character described, a conveyer for nail blanks, a blank holder arranged to receive the blanks from the conveyer, means to open and close the holder, a header, a blank carrier arranged to oscillate between the holder and header, and means to open and close the carrier.

4. In a machine of the character described, a conveyer for nail blanks, a blank holder arranged beneath the conveyer, a carrier arranged to swing under the holder, means to open the carrier during its movement to the holder, and means to simultaneously open the holder and close the carrier.

5. In a machine of the character described,

'a conveyer for nail blanks, carrier for the opening of the holder, dies in the carrier,

a vertically movable header cooperating with the dies, and means to move the carrier from the holder to the header.

6. In a machine of the character described, a conveyer for nail blanks, a swinging blank carrier comprising two separable arms, dies in the arms to hold the blanks, a vertically movable header cooperating with the dies, means to move the carrier under the header, a bed for the carrier arms, and means to open and close the latter.

7. In a machine of the character described, a conveyer for nail blanks, a holder comprising two vertically and horizontally movable arms, means to spread said arms, a horizontally movable carrier, a vertically movable the carrier during its movement toward the holder and to close the same during its movement toward the header.

8. In a machine of the character described, a conveyer for nail blanks, a holder comprising two vertically yielding and horizontally movable arms, means to move said arms horizontally to open and close said holder, a vertically movable header, a pivoted carrier arm, an auxiliary arm pivoted on the carrier arm, means to swing the carrier and auxiliary arms between the holder and header, and means to limit the movement of the auxiliary arm toward the holder to open the carrier.

9. In a machine of the character described, a conveyer for nail blanks, a holder comprising two vertically yielding and horizontally movable arms, means to move said arms horizontally to open and close said holder, a vertically movable header, a pivoted carrier arm, an auxiliary arm pivoted on the carrier arm, dies in the carrier and auxiliary arms, means to swing the carrier and auxiliary arms between the holder and header, and means to limit the movement of the auxiliary arm toward the holder to open the carrier.

10. In a machine of the character described, a conveyer for nail blanks, a holder comprising two vertically yielding and horizontally movable arms, means to swing said arms horizontally to open and close the holder, a vertically movable header, a pivoted carrier arm, an auxiliary carrier arm pivoted on the latter, dies in the free ends of the arms, means to yieldingly hold the dies in operative relation, means to swing the carrier and auxiliary arms under the holder and header, bed plates supporting the free ends of the arms, and a lug mounted in the path of the auxiliary arm tolimit the movement thereof in one direction.

1 11. In a machine of the character described, a conveyer for nail blanks, a holder arranged to receive blanks from the con veyer, a vertically reciprocating header, a carrier movable alternately under the carrier and header, a rocking lever, and means actuated by the latter to simultaneously open the holder and close the carrier, said closing means adapted to move the carrier into operative relation With the header.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing Witnesses.

- OLE HANSEN LUND'. Witnesses:

O. NORMAN, C. FABRICIUS HANSEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patent!,

Washington, D. 0. 

